
And Gw2 can't be "failed" it hasn't even properly started yet...
"WoW experiment"? I don't think so; though it does bear some resemblance with WoW, it also shares them with LotrO, Gw1 and other MMORPG's out there...
And last; Gw1 is not MMOrpg, it's a MM/COOrpg hybrid.. learn your facts straight...